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/* Copyright (c) 2018-2021, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file log_sys.c
* \brief Setup and tear down the logging module.
**/
#include "orconfig.h"
#include "lib/subsys/subsys.h"
#include "lib/log/escape.h"
#include "lib/log/log.h"
#include "lib/log/log_sys.h"
#include "lib/log/util_bug.h"
#include "lib/metrics/metrics_store.h"
static metrics_store_t *the_store;
static int
subsys_logging_initialize(void)
{
init_logging(0);
the_store = metrics_store_new();
return 0;
}
static void
subsys_logging_shutdown(void)
{
logs_free_all();
escaped(NULL);
}
static const smartlist_t *
logging_metrics_get_stores(void)
{
static smartlist_t *stores_list = NULL;
metrics_store_reset(the_store);
metrics_store_entry_t *sentry = metrics_store_add(
the_store,
METRICS_TYPE_COUNTER,
METRICS_NAME(bug_reached_count),
"Total number of BUG() and similar assertion reached",
0, NULL);
metrics_store_entry_update(sentry, tor_bug_get_count());
if (!stores_list) {
stores_list = smartlist_new();
smartlist_add(stores_list, the_store);
}
return stores_list;
}
const subsys_fns_t sys_logging = {
.name = "log",
SUBSYS_DECLARE_LOCATION(),
.supported = true,
/* Logging depends on threads, approx time, raw logging, and security.
* Most other lib modules depend on logging. */
.level = -90,
.initialize = subsys_logging_initialize,
.shutdown = subsys_logging_shutdown,
.get_metrics = logging_metrics_get_stores,
};
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